﻿/* 
 * Copyright (c) 2012, CalixHu calixhu@gmail.com
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Clever Age nor the names of its contributors 
 *       may be used to endorse or promote products derived from this software
 *       without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.ReportingServices.OnDemandReportRendering;
using Microsoft.ReportingServices.Interfaces;
using System.Net;
using System.IO;
using System.Diagnostics;

namespace XSSRS.WordRenderer
{
    public class DocxRenderer : IExtension, IRenderingExtension
    {

        public string LocalizedName
        {
            get { return "Word2007"; }
        }

        public void SetConfiguration(string configuration)
        {
            ;
        }

        public void GetRenderingResource(CreateAndRegisterStream createAndRegisterStreamCallback, System.Collections.Specialized.NameValueCollection deviceInfo)
        {
            ;
        }

        public bool Render(Microsoft.ReportingServices.OnDemandReportRendering.Report report, System.Collections.Specialized.NameValueCollection reportServerParameters, System.Collections.Specialized.NameValueCollection deviceInfo, System.Collections.Specialized.NameValueCollection clientCapabilities, ref System.Collections.Hashtable renderProperties, CreateAndRegisterStream createAndRegisterStream)
        {
            string downloadUrl = null ;
            try
            {
                // Get the report URL
                downloadUrl = string.Concat(
                                            report.GetReportUrl(false),
                                            "&rs:Format=WORD&rs:Command=Render&rc:FileExtension=doc");

                // Concatenate parameters to report URL
                foreach (ReportParameter parameter in report.Parameters)
                {
                    if (parameter.MultiValue)
                    {
                        for (int i = 0; i < parameter.Instance.Values.Count; i++)
                        {
                            downloadUrl = string.Concat(downloadUrl, "&", parameter.Name, "=", parameter.Instance.Values[i].ToString());
                        }
                    }
                    else
                    {
                        if (!string.IsNullOrEmpty(parameter.Instance.Prompt))
                        {
                            downloadUrl = string.Concat(downloadUrl, "&", parameter.Name, "=", parameter.Instance.Value);
                        }
                    }
                }
               
                byte[] doc;

                // Download the report rendered in word format
                Uri uri = new Uri(downloadUrl);
                WebClient webClient = new WebClient();
                webClient.Credentials = CredentialCache.DefaultNetworkCredentials.GetCredential(uri, "Basic");
                doc = webClient.DownloadData(uri);
                
                if (doc.Length == 0)
                {
                    Log2File.Write("download dox file fialed!" + "\n" + downloadUrl);
                }
                

                 // Stream the document
                Stream s = createAndRegisterStream(
                           report.Name,
                           "docx",
                           Encoding.Default,
                           "application/msword",
                           true,
                           StreamOper.CreateAndRegister);
                BinaryWriter bw = new BinaryWriter(s);

                bw.Write(Doc2X.Convert(doc));
                bw.Flush();
            }
            catch (System.Exception ex)
            {
                Log2File.Write(ex.Message + "\n" + ex.StackTrace + "\n" + downloadUrl);
                // Report rendering failed
                return false;
            }
            return true;
        }

        public bool RenderStream(string streamName, Microsoft.ReportingServices.OnDemandReportRendering.Report report, System.Collections.Specialized.NameValueCollection reportServerParameters, System.Collections.Specialized.NameValueCollection deviceInfo, System.Collections.Specialized.NameValueCollection clientCapabilities, ref System.Collections.Hashtable renderProperties, CreateAndRegisterStream createAndRegisterStream)
        {
            return true;
        }
    }
}
